Messages in this thread Patch in this message | | | From | Lad Prabhakar <> | Subject | [PATCH v3 3/4] media: i2c: ov5645: Set maximum leverage of external clock frequency to 24480000 | Date | Fri, 13 Mar 2020 21:12:33 +0000 |
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While testing on Renesas RZ/G2E platform, noticed the clock frequency to be 24242424 as a result the probe failed. However increasing the maximum leverage of external clock frequency to 24480000 fixes this issue. Since this difference is small enough and is insignificant set the same in the driver.
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> --- drivers/media/i2c/ov5645.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/media/i2c/ov5645.c b/drivers/media/i2c/ov5645.c index 4fbabf3..b49359b 100644 --- a/drivers/media/i2c/ov5645.c +++ b/drivers/media/i2c/ov5645.c @@ -1107,8 +1107,10 @@ static int ov5645_probe(struct i2c_client *client) } xclk_freq = clk_get_rate(ov5645->xclk); - /* external clock must be 24MHz, allow 1% tolerance */ - if (xclk_freq < 23760000 || xclk_freq > 24240000) { + /* external clock must be 24MHz, allow a minimum 1% and a maximum of 2% + * tolerance + */ + if (xclk_freq < 23760000 || xclk_freq > 24480000) { dev_err(dev, "external clock frequency %u is not supported\n", xclk_freq); return -EINVAL; -- 2.7.4
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